When sourcing GWM parts, always prioritize OEM (Original Equipment Manufacturer) components which feature the official GWM logo and unique part numbers. For aftermarket parts, ensure the supplier provides a cross-reference compatibility chart matching your specific vehicle model (e.g., Haval, Poer, Tank, or Ora) and VIN (Vehicle Identification Number). High-quality aftermarket parts should meet or exceed ISO/TS 16949 standards, which is the global quality management standard for the automotive industry.